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WBJEE · Maths · Definite Integration

The value of the integral \(\int_{1}^{5}[|x-3|+|1-x|] d x\) is equal to

  1. A 4
  2. B 8
  3. C 12
  4. D 16
Verified Solution

Answer & Solution

Correct Answer

(C) 12

Step-by-step Solution

Detailed explanation

\(\int_{1}^{5}[|x-3|+|1-x|] d x\) \(=\int_{1}^{5}|x-3| d x+\int_{1}^{5}|1-x| d x\) \(=\int_{1}^{3}|x-3| d x+\int_{3}^{5}|x-3| d x+\int_{1}^{5}|1-x| d x\) \(=\int_{1}^{3}-(x-3) d x+\int_{3}^{5}(x-3) d x\) \(+\int_{1}^{5}-(1-x) d x\)…